public void Constructor_does_not_throw_when_logger_is_null()
{
var evaluator = Substitute.For <IFeatureEvaluator>();
var feature = new SimpleTestFeature(evaluator);
Func <FeatureSelector <SimpleTestFeature, NewGetSomething, OldGetSomething, IGetSomething> > act =
() => new FeatureSelector <SimpleTestFeature, NewGetSomething, OldGetSomething, IGetSomething>(
feature,
() => new NewGetSomething(),
() => new OldGetSomething(),
null);
act.Should().NotThrow();
}
public void Constructor_throws_when_off_is_null()
{
var evaluator = Substitute.For <IFeatureEvaluator>();
var feature = new SimpleTestFeature(evaluator);
var logger = Substitute.For <ILogger <FeatureSelector <SimpleTestFeature, NewGetSomething, OldGetSomething, IGetSomething> > >();
Func <FeatureSelector <SimpleTestFeature, NewGetSomething, OldGetSomething, IGetSomething> > act =
() => new FeatureSelector <SimpleTestFeature, NewGetSomething, OldGetSomething, IGetSomething>(
feature,
() => new NewGetSomething(),
null,
logger);
act.Should().Throw <ArgumentNullException>().WithMessage("*off*");
}
public async Task CreateAsync_logs_off_with_the_correct_type_when_feature_is_off()
{
var evaluator = Substitute.For <IFeatureEvaluator>();
var feature = new SimpleTestFeature(evaluator);
var logger = Logger.For <FeatureSelector <SimpleTestFeature, NewGetSomething, OldGetSomething, IGetSomething> >();
var selector = new FeatureSelector <SimpleTestFeature, NewGetSomething, OldGetSomething, IGetSomething>(
feature,
() => new NewGetSomething(),
() => new OldGetSomething(),
logger);
evaluator.IsOnAsync(Arg.Any <string>()).Returns(false);
var getter = await selector.CreateAsync();
logger.Received().LogInformation(s => s.Contains("OldGetSomething") && s.Contains("Test Feature") && s.Contains("off"));
}
public async Task CreateAsync_creates_the_correct_type_when_feature_is_off()
{
var evaluator = Substitute.For <IFeatureEvaluator>();
var feature = new SimpleTestFeature(evaluator);
var selector = new FeatureSelector <SimpleTestFeature, NewGetSomething, OldGetSomething, IGetSomething>(
feature,
() => new NewGetSomething(),
() => new OldGetSomething(),
null);
evaluator.IsOnAsync(Arg.Any <string>()).Returns(false);
var getter = await selector.CreateAsync();
var result = getter.GetSomething();
getter.Should().BeOfType <OldGetSomething>();
result.Should().Be("Old");
}
